Safety razor



ATTORNEY n I I I I I I II a 2 m a. M m h n h: m a 5 n 2 3 a u T 1 k a 17 n m m n H J n 1U u I. 2 a. a Q u .Q n I 6 u 1 4 8 4 n a J u n X L y uf v 24M n MW k 3 u Feb. 14, 1933.

Filed Dec; 26, 1929 Patented Feb. 14, 1933 UNITED STATES PATENT OFFICETO GILLETTE SAFETY RAZOR COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORA-TION OF DELAWARE SAFETY nazon.

Application filed December 26, 1929. Serial No. 416,364.

My invention relates to improvements in theclass of safety razors in.which a blade is held for shaving between two clamping mem bers,including a guard member and a backing member for the blade.

An object of my invention is to provide asafety razor blade having astud receiving aperture or opening comprising a slot having enlargementsextending in a longitudinal direction with respect to the cutting edgesof the blade in such a way as to increase the flexibility of the bladenot only along its longitudinal axis but at opposite sides thereof.

Another object of my invention is to provide blade clamping members withstuds to enter the aperture of the blade, the studs on one clampingmemberentering the blade aperture located substantially centrally withrespect to the central longitudinal axis of the blade and studs on theother member entering openings or enlargements of the slot on oppositesides of the first mentioned aperture or slot in the central portion ofthe blade, whereby the blade and the said members will be retained inshaving position, and the blade will readily bend when clamped betweensaid members.

My invention comprises novel details of improvement that will be morefully hereinafter set forth and then pointed out in the claims.

Reference is tobe had to the accompanying drawing, wherein ig. 1 is anedge view of my improved razor in condition for use; Fig. 2 is alongitudinal section of Fig. 1; Fig. 3 is a plan view of the blade; Fig.4 is a plan View of the assembled parts, partly in section on line 4, 4in Fig. 1; Fig. 5 is a section on line 5, 5 in Fig. 4, showing the partsin position for clamping; Fig. 5a is a similar view showing the partsclamped together for use Fig. 6 is a plan view of the guard member; Fig.7 is an inverted plan view of the backing member, and Fig. 8 is a planview of the blade showing cylindrical studs in section.

Similar numerals indicate corresponding parts in the several views.

Blade clamping members are indicated at 1 and 2 to clamp a blade 3therebetween for shaving. The member 1 is a guard member,

.NATEAN R. MAAS, OF WOODMERE, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS,

having guards 1a, and the member 2 is a back- 3a. The aperture or slot3a, including the portions 9, are "shown located in the centrallongitudinal axis of the blade with respect to the cutting edges of the.latter. The aperture 3a is shown extending toward the corresponding endof the blade at 3, serving in effect as an extension of the slot-likeportions 9. At opposite sides of the aperture the blade is provided withspaced stud-receiving enlargements 3?), that are elongated and extendsubstantially parallel with the cutting edges of the blade inlongitudinal planes on opposite sides of said axis and spaced therefrom.The adjacent portions of the slots 3a and 36 communicate, providing thematerial of the blade with ears having longitudinally projectingstud-engaging edges 30. The edges 30 are shown extending diagonally withrespect to the longitudinal axis of the blade. The enlargements 3a areshown as non-cylindrical, adapted to receive non-cylindrical studs 10,

that are shown projecting from the member- 1. The edges 30 are sorelated that the aper- 10 are shown provided with lateral extensions.

10' adapted to enter the open portions.9 and 3' of the blade. Said studsserve to position the blade upon the member 1 and retain the cuttingedges of the blade in shaving relation to the guards 1a, preventinglateral and longitudinal movement of the blade upon mem- The member 2 isprovided with spaced studs or projections 11 that are adapted to enterthe enlargements 3b of the blade, and to enter opposing openings 12 inthe member 1, (Figs. 5 and 5a). The studs all are spaced apart onopposite sides of the longitudinal axis of member 2 and are elongated inparallel relation to said axis to correspond with the location of theblade apertures 36, said studs being in longitudinal planes on oppositesides of the said axis, (Fig. 4). The outer edges of the apertures 37)of the blade are shown provided with inwardly extending projections 3",and the studs 11 are shown provided along their outer surfaces withinwardly extending recesses 11a to receive said projections, (Fig. 4).The studs 7 11, by entering the apertures 31) of the blade,

retain the backing member 2 in proper relation to the cutting edges ofthe blade. The ends of the blade are shown reduced at 14, providingprojecting end portions of the blade at 3d, whereby the blade will havethe desired overall length and the cutting edges will not extend beyondthe guards 1a.

When the parts are assembled, as shown in Fig. 5, the studs 10 willenter the blade slot enlargements 3a and will retain the cutting edgesof the blade in shaving relation to the guards 1a, and the projections11 by entering the blade slot enlargements 3?) will re-' tain thebacking member 2 in proper position upon the blade, when the parts areclamped together. The efi'ect of the relation of the parts issubstantially similar to that set forth in Letters Patent to Henry J.Gaisman No. 1 1,633,739, issued June 28, 1927, in that the blade isretained on the guard member and the blade retains the backing member insh av ing relation. My improved blade is rendered exceeding flexiblealong its longitudinal axis by reason of the open portions 3a, 9, and3', and the side portions of the blade material between said openportions and the cutting edges are made flexible by reason of thelongitudinally extending slot enlargements 3b that are located betweensaid open portions and the cutting edges, so that danger of breaking theblade when clamped between the members 1 and 2 is reduced.

Having now described my invention what I claim is:

1. A safety razor comprising a head and a handle, said head includingcap and guard members and a blade, said cap and guard members havingopposed blade flexing and supporting portions, co-acting means on thecap and handle to secure the razor parts together and hold the bladeinflexed position for shaving, said blade having an elongated slotprovided with recesses or openings in the edge of its slot, some of saidrecesses terminating in longitudinal enlargements, said enlargementsdefining, in combination with said slot and recesses, ears which extendlongitudinally of the blade, means on the guard to engage the slottedportion of the blade to align the guard and blade, and means on the capin engagement with the ears aforesaid to align the cap and blade.

2. A safety razor comprising a head and a handle, said head includingcap and guard and blade, and means on the cap passing through thelongitudinal enlargements aforesaid to align the cap and blade.

3. A safety razor as set forth in claim 2 in which the slot in thebladeand the enlargements thereof are parallel to each other.

4. A safety razor as set'forth in claim 2 in which the slot in the bladeand the-enlargements thereof are parallel to each other and to thecutting edges of the blade.

' 5. In a safety razor comprising a .head and a handle, the headincluding a blade having a cutting edge, blade flexing and supportingcap and guard members, co-act ing means on the handle and cap to securethe razor parts together in position for shaving, co-acting means on theguard and blade to locate and maintain said blade and guard in positionof alignment, said blade having interior openings within its peripheraloutline, means on said cap engaging said openings within the blade foraligning the blade and cap, said blade being provided with a slot atleast as longas the cutting edge,

whereby the small areas at the ends of the slot are located beyond thecutting edgeportions and the openings.

6. A thin flexible blade of oblong contour having parallel cuttingedges, said blade having a slot in its central zone, said slot havingrecesses or openings in the edge portions thereof terminating inenlargements on each side of said slot, said enlargements in combinationwith said slot and the recesses thereof defining ears which extendlongitudinally of the blade, the slot in the blade being at least aslong as the cutting edges whereby the small areas of the blade at theends of the slot are located beyond the cutting edges and theenlargements.

7. A thin flexible blade of'oblong contour having parallel cuttingedges, said blade having a slot in its central zone, said slot havingrecesses or openings in the edge portions to the blade edges.

,NATHAN lt,

